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Scratches on film

Scratches on film

A630/0340

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Credit

DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY

Caption

Scratches on lubricating film. Coloured scanning electron micrograph (SEM) of scratches on the surface of a lubricating film of molybdenum disulphide from a dry film anti-scuffing aerosol spray. The spray contains the lubricant, a volatile organic solvent and a small amount of bonding resin. The solvent quickly evaporates, leaving a layer of randomly-dried rings of molybdenum disulphide. These raised rings are gradually scratched and abraded with use, slowly smearing out to produce a thin film. Dry film lubricants have advantages over oils including not attracting dust and they can be used to higher temperatures. Magnification: x480 at 5x7cm size.

Release details

Model release not required. Property release not required.

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